Lumber Liquidators, which saw its share price plummet after a critical "60 Minutes" report about alleged health and safety failures in its flooring materials, has responded by questioning the news program’s methodology and blaming its financial woes on short-sellers.

Food consumers concerned about source as much as price, brand and nutrition represent $200 billion, or about one-quarter, of the annual food sales market, according to a study by a joint venture of G&S Business Communications and rbb PR.

*O'Dwyer's is the only PR firm ranking which requires the top page of the latest corporate income tax return and W-3, establishing particpants as PR firms rather than ad agencies or other types of businesses.